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Re: hunt for mainline regressions
On Wed, Dec 18, 2002 at 09:38:03AM -0800, Janis Johnson wrote:
> On Wed, Dec 18, 2002 at 08:16:22AM +0100, Christian Jönsson wrote:
> > On Tue, Dec 17, 2002 at 04:44:07PM -0800, Janis Johnson wrote:
> > > My regression hunting is pretty well automated now, but I'm still
> > > figuring out new little tricks and then updating my scripts and
> > > howto document accordingly. I hope to send those out again soon for
> > > review.
> > >
> > > I'm selecting regressions to hunt somewhat randomly from among the ones
> > > for which Wolfgang Bangerth has identified a half-month range when it
> > > occurred. If you'd like me to search for a particular regression from
> > > his list, let me know.
> >
> > well, not sure this is on his list, but anyhow, c++/8183 has been a
> > problem for a while.
>
> It's not on his list because the bug doesn't show up on i686-linux.
> I tried it on ia64-linux and powerpc64-linux and don't see it on either
> of those; if I can't reproduce it, I can't hunt for the patch that
> caused it to start failing.
>
> > Sometime Sept 12 2002 the mainline, then 3.3 (experimental) worked for
> > sparc64-{linux,solaris*} targets. Then, sometime, it stopped. I think
> > before the end if Sept 2002.
> >
> > I really don't know how to hunt the bug down... :-( it might be kernel
> > related, it might very well be libc related...
>
> I don't see how an ICE would be related to the kernel or libc. Can you
> reproduce it by doing a simple build (rather than a bootstrap) of G++,
> using a recent version of GCC for the build? If so, you might want to
> try my new scripts.
OK, I'll try your bug hunt scripts :-) hmm, they're not in contrib,
where can I faind them (and doc to 'em)?
Cheers,
/ChJ